Referer
The URL of the page that linked to the requested resource. Used for analytics and referrer policy.
RequestSyntax
Referer: <url>Example values
| Value | Explanation |
|---|---|
| https://example.com/page | Full URL of referring page |
| (absent) | Direct navigation, privacy mode, or Referrer-Policy |
cURL usage
curl -H "Referer: https://example.com" https://api.example.com/track
Common mistakes
Referer can be stripped by browser; don't rely on it for security.